Ostinato Alternatives (January 2026)

Ostinato Traffic Generator for Network Engineers

Ethernet/IP packet generator, 10/40/100G network traffic generator and tester. Load and functional tests. GUI and Python-API. No special hardware required

4.8/5

132+ reviews

Reviewed on:

Load Testing & Website Performance Tools - LoadView

https://www.loadview-testin

.com/

Real browser-based load testing for websites, web apps, and APIs. Generate user traffic from around the world to gain insight into system performance.

Graphical Network Monitoring and Troubleshooting | PingPlotter

https://www.pingplotte

.com/

Monitor latency, packet loss, and jitter. Plot results on an infinite timeline. Find the source of problems. Share the evidence.

Nmap: the Network Mapper - Free Security Scanner

https://nma

.org/

Nmap Free Security Scanner, Port Scanner, & Network Exploration Tool. Download open source software for Linux, Windows, UNIX, FreeBSD, etc.

Pritunl - Open Source Enterprise Distributed OpenVPN, IPsec and WireGuard Server

https://pritun

.com/

Free open source enterprise distributed VPN server. Virtualize your private networks across datacenters and provide simple remote access in minutes.

IT Infrastructure Monitoring Made Easy - WhatsUp Gold

https://www.whatsupgol

.com/

Progress (formerly Ipswitch) WhatsUp Gold provides complete visibility into the status and performance of applications, network devices and servers in the cloud or on-premises.

Loadero - End-to-end Load and Performance Testing Tool

https://loader

.com/

Feature-rich cloud tool for simulating real users and real-world conditions to properly test web application performance and scalability

Network Performance Monitoring Software and Tools - Obkio

https://obki

.com/

The best Network Performance Monitoring software for easy network monitoring & troubleshooting for SMBs & enterprises. Deploy in minutes. Try for free.

LoadNinja | Performance Testing and Load Testing Tool

https://loadninj

.com/

The only load testing tool to record, replay, and test in real browsers at scale. Performance testing doesn't have to be the bottleneck. Cut your load testing time in half by running website performance tests in real browsers at scale. LoadNinja is the only load testing tool to record and replay scripts in minutes, leverage real browsers, and deliver actionable website performance data straight from the browser’s DOM.

Load testing for engineering teams | Grafana k6

https://k

.io/

k6 is an open-source tool and cloud service that makes load testing easy for developers and QA engineers.